BabylonJS: Curve3 Cheat Sheet

Quadratic Bezier Curve

Syntax

var bezier = BABYLON.Curve3.CreateQuadraticBezier(origin, control, destination, nb_of_points);

Parameters

Below are parameters related to the Quadratic Bezier Curve:

• Origin − The origin point for the curve.
• Control − Control points for the curve.
• Destination − Destination point.
• Noofpoints − Points in the array.

Cubic Bezeir Curve

Syntax

var bezier3 = BABYLON.Curve3.CreateCubicBezier(origin, control1, control2, destination, nb_of_points)

Parameters

Below are parameters related to the Cubic Bezier Curve:

• Origin − Origin point.
• control1 − The first control point in vector form.
• control2 − The second control point in vector form.
• Destination − Destination point in vector form.
• no_of_points − The number of points in array form.

HermiteSpline Curve

Syntax

var hermite = BABYLON.Curve3.CreateHermiteSpline(p1, t1, p2, t2, nbPoints);

Parameters

Below are parameters related to the Hermite Spline Curve :

• p1 − The origin point for the curve.
• t1 − The origin tangent vector point.
• p2 − Destination point.
• t2 − Destination tangent vector.
• NbPoints − The array of points for the final curve.

Catmull-Rom Spline Curve

Syntax

var nbPoints = 20;   // the number of points between each Vector3 control points
var points = [vec1, vec2, ..., vecN];  // an array of Vector3 the curve must pass through : the control points
var catmullRom = BABYLON.Curve3.CreateCatmullRomSpline(points, nbPoints);

Parameters

Below are parameters related to the Catmull-Rom Spline Curve:

• Points − An array of Vector3, the curve must pass through the control points.
• NbPoints − The number of points between each Vector3 control points.

var path = catmullRom.getPoints(); // getPoints() returns an array of successive Vector3.
var l = catmullRom.length(); // method returns the curve length.